Briggs retired from British league racing in 1972 after an accident during Heat 5 of the World Final at Wembley Stadium with Swedish rider Bernt Persson.[5] As a result of the accident, Briggs lost the index finger of his left hand,[6] but returned in 1974, retiring for a final time in 1976.

In retirement, Briggs became the mentor to many young riders who went on to race in World Finals including fellow Kiwi Mitch Shirra. He also lent his voice to television, becoming a respected speedway commentator in England and Europe, as well as the USA.